矿床地质2013,Vol.32Issue(4):661-671,11.
大型-超大型矿床找矿新认知
New recognized intellect for prospecting large-superlarge mineral deposits
摘要
Abstract
Based on the database of 1285 mineral deposits constituting 22 commodities in 121 countries (areas) from 6 continents in the world,the authors used the linear trend analysis for their reserves to determine the cut-off limited order of reserves.As a result,36 exceptional superlarge deposits (peak mineral deposits),95 superlarge deposits and 314 large deposits were selected as new cognition for their quantitative change.The authors projected over 445 large-superlarge deposits on the (1 ∶ 25 M) global tectonic background map and assigned them to 4 metallogenic domains and 21 metallogenic belts.Global metallogeny of large-superlarge deposits includes unity of endogenic,exogenic metamorphic and epigenetic ore-forming processes in origin; speciality of different metallogenic domains and belts; preferentiality of ore-forming elements of Cu,Au,Fe,Ag,Cr,Mn,Zn,Pb,Sb,Hg to continental margins or plate convergent belts,intra-continental tectono-magmatic complex belts and large ductile shear zones; abnormality of the global oxyatmversion (oxygen-excessing atmospheric event) in Archean-early Proterozoic,redoxyatmversion (oxygen-lacking atmospheric event) in Proterozoic-Paleozoic,and tectonosphere thermal erosion (great amounts of tectonic magmatic event) in Mesozoic-Cenozoic.关键词
地质学/新认知/大型-超大型矿床/成矿统一性、专属性、偏在性、异常性Key words
geology, new cognition, large-superlarge deposits, metallogenic unity, speciality, preferentiality, abnormality分类
天文与地球科学引用本文复制引用
裴荣富,梅燕雄,瞿泓滢,王浩琳..大型-超大型矿床找矿新认知[J].矿床地质,2013,32(4):661-671,11.基金项目
本文得到国土资源部专项研究计划(20010103)资助 (20010103)